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Kim YH, Baek JJ, Chang KC, Park BS, Koh WG, Shin G. Effect of Synthetic Low-Odor Thiol-Based Hardeners Containing Hydroxyl and Methyl Groups on the Curing Behavior, Thermal, and Mechanical Properties of Epoxy Resins. Polymers (Basel) 2023; 15:2947. [PMID: 37447592 DOI: 10.3390/polym15132947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
A novel thiol-functionalized polysilsesqioxane containing hydroxyl and methyl groups was synthesized using a simple acid-catalyzed sol-gel method to develop an epoxy hardener with low odor, low volatile organic compound (VOC) emissions, and fast curing at low temperatures. The synthesized thiol-based hardeners were characterized using Fourier transform infrared spectroscopy, nuclear magnetic resonance, thermogravimetric analysis (TGA), and gel permeation chromatography and compared with commercially available hardeners in terms of odor intensity and VOC emissions using the air dilution olfaction method and VOC analysis. The curing behavior and thermal and mechanical properties of the epoxy compounds prepared with the synthesized thiol-based hardeners were also evaluated. The results showed that synthetic thiol-based hardeners containing methyl and hydroxyl groups initiated the curing reaction of epoxy compounds at 53 °C and 45 °C, respectively. In contrast, commercial thiol-based hardeners initiated the curing reaction at 67 °C. Additionally, epoxy compounds with methyl-containing synthetic thiol-based hardeners exhibited higher TGA at a 5% weight loss temperature (>50 °C) and lap shear strength (20%) than those of the epoxy compounds with commercial thiol-based hardeners.
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Affiliation(s)
- Young-Hun Kim
- Green and Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jeong Ju Baek
- Green and Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, Republic of Korea
| | - Ki Cheol Chang
- Green and Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, Republic of Korea
| | - Baek Soo Park
- Green and Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, Republic of Korea
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Gyojic Shin
- Green and Sustainable Materials R&D Department, Research Institute of Clean Manufacturing System, Korea Institute of Industrials Technology (KITECH), Yangdaegiro-gil 89, Ipjang-myeon, Cheonan-si 31056, Republic of Korea
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2
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Santiago D, Serra À. Enhancement of Epoxy Thermosets with Hyperbranched and Multiarm Star Polymers: A Review. Polymers (Basel) 2022; 14:2228. [PMID: 35683901 PMCID: PMC9182725 DOI: 10.3390/polym14112228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/24/2022] [Accepted: 05/28/2022] [Indexed: 02/05/2023] Open
Abstract
Hyperbranched polymers and multiarm star polymers are a type of dendritic polymers which have attracted substantial interest during the last 30 years because of their unique properties. They can be used to modify epoxy thermosets to increase their toughness and flexibility but without adversely affecting other properties such as reactivity or thermal properties. In addition, the final properties of materials can be tailored by modifying the structure, molecular weight, or type of functional end-groups of the hyperbranched and multiarm star polymers. In this review, we focus on the modification of epoxy-based thermosets with hyperbranched and multiarm star polymers in terms of the effect on the curing process of epoxy formulations, thermal, mechanical, and rheological properties, and their advantages in fire retardancy on the final thermosets.
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Affiliation(s)
- David Santiago
- Eurecat–Chemical Technologies Unit, C/Marcel·lí Domingo 2, 43007 Tarragona, Spain
- Department of Mechanical Engineering, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain
| | - Àngels Serra
- Department of Analytical and Organic Chemistry, Universitat Rovira i Virgili, C/Marcel·lí Domingo 1, 43007 Tarragona, Spain;
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3
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Preparation of strongly photoluminescent nanocomposite from DGEBA epoxy resin and highly fluorescent nitrogen-doped carbon dots. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04207-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Wang H, Li C, Hou Z, Li B, Cai H. A phosphorus-containing imidazole derivative towards the liquid oxygen compatibility and toughness of epoxy resin. RSC Adv 2022; 12:7046-7054. [PMID: 35424690 PMCID: PMC8982171 DOI: 10.1039/d1ra09049f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/17/2022] [Indexed: 11/21/2022] Open
Abstract
In order to develop a liquid oxygen-compatible (LOX-compatible) matrix resins for polymer-based fiber-reinforced composites, a novel phosphorus-containing imidazole derivative called VAD containing multifunctional groups was synthesized and used as a co-curing agent for epoxy resin (EP) with simultaneous LOX-compatibility and mechanical improvement. A phosphorus group was introduced into the EP to capture the free radicals generated during the pyrolysis of the polymer to improve LOX compatibility, and the trimethylene group was introduced as a flexible spacer to enhance the toughness of the cured material. In comparison to pure EP, the modified EP with only 2.5 wt% VAD showed excellent mechanical properties with 23.0% and 75.6% increase in tensile and impact strength, respectively. Furthermore, as the content of VAD increased, a thermoset compatible with LOX (according to the liquid oxygen impact test) was obtained, and the flame retardancy was improved (according to the limiting oxygen index test). However, there was no significant sacrifice of transparency or thermal stability. In addition, the LOX compatibility mechanism was analyzed using X-ray photoelectron spectroscopy. As an efficient multi-functional modifier, VAD has a bright future in the modification realm of EP materials.
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Affiliation(s)
- Huihuan Wang
- School of Materials Science and Engineering, Wuhan University of Technology Wuhan 430070 China
| | - Chuan Li
- Shanghai Composites Science & Technology Co., Ltd Shanghai 201112 China
| | - Zhuang Hou
- School of Materials Science and Engineering, Wuhan University of Technology Wuhan 430070 China
| | - Bolun Li
- School of Materials Science and Engineering, Wuhan University of Technology Wuhan 430070 China
| | - Haopeng Cai
- School of Materials Science and Engineering, Wuhan University of Technology Wuhan 430070 China
- Institute of Advanced Materials Manufacturing Equipment and Technology, Wuhan University of Technology Wuhan 430070 China
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5
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Enhancing Toughness and Impact Strength of Epoxy Resins by Using Hyperbranched Polymers. INT J POLYM SCI 2021. [DOI: 10.1155/2021/9984174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Toughened epoxy has been widely used in industrial areas such as automotive and electronics. In this study, nanosized hyperbranched polymers (HBPs) as a flexibilizer are synthesized and embedded into epoxy resin to enhance the toughness and flexibility. Two different HBPs, hyperbranched poly(methylacrylate-diethanolamine) (poly(MA-DEA)) and poly(methylacrylate- ethanolamine) (poly(MA-EA)), were prepared and blended with both epoxy and polyetheramine, a curing agent. The molecular size of HBPs was estimated to be 6 ~ 14 nm in diameter. The molecular weight of HBPs ranges from 1500(1.5 K) to 7000(7.0 K) g/mol. In cured epoxy/HBP blends, no phase separations are occurred, indicating that HBPs possess sufficient miscibility with epoxy. The tensile toughness of the blends increased with changing the molecular weight of HBPs without sacrificing tensile strengths. The impact strength of the blends increases stiffly until the loading % of HBPs in the blends reaches 10 wt%. In addition, the experimental studies showed that impact resistance also increased with an increase in molecular weight of HBPs. The obtained impact resistance of the epoxy/HBP blends with 10 wt% was 270% more effective compared to that of cured neat epoxy.
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7
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Goliszek M, Podkościelna B, Klepka T, Sevastyanova O. Preparation, Thermal, and Mechanical Characterization of UV-Cured Polymer Biocomposites with Lignin. Polymers (Basel) 2020; 12:polym12051159. [PMID: 32438552 PMCID: PMC7285094 DOI: 10.3390/polym12051159] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/06/2020] [Accepted: 05/17/2020] [Indexed: 11/16/2022] Open
Abstract
The preparation and the thermal and mechanical characteristics of lignin-containing polymer biocomposites were studied. Bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BPA.GDA) was used as the main monomer, and butyl acrylate (BA), 2-ethylhexyl acrylate (EHA) or styrene (St) was used as the reactive diluent. Unmodified lignin (L) or lignin modified with methacryloyl chloride (L-M) was applied as an ecofriendly component. The influences of the lignin, its modification, and of the type of reactive diluent on the properties of the composites were investigated. In the biocomposites with unmodified lignin, the lignin mainly acted as a filler, and it seemed that interactions occurred between the hydroxyl groups of the lignin and the carbonyl groups of the acrylates. When methacrylated lignin was applied, it seemed to take part in the creation of a polymer network. When styrene was added as a reactive diluent, the biocomposites had a more homogeneous structure, and their thermal resistance was higher than those with acrylate monomers. The use of lignin and its methacrylic derivative as a component in polymer composites promotes sustainability in the plastics industry and can have a positive influence on environmental problems related to waste generation.
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Affiliation(s)
- Marta Goliszek
- Department of Polymer Chemistry, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 5, 20-031 Lublin, Poland;
- Analytical Laboratory, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 5, 20-031 Lublin, Poland
- Correspondence:
| | - Beata Podkościelna
- Department of Polymer Chemistry, Institute of Chemical Science, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 5, 20-031 Lublin, Poland;
| | - Tomasz Klepka
- Department of Technology and Polymer Processing, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland;
| | - Olena Sevastyanova
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-10044 Stockholm, Sweden;
- Wallenberg Wood Science Center (WWSC), Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-10044 Stockholm, Sweden
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8
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Aromatic Hyperbranched Polyester/RTM6 Epoxy Resin for EXTREME Dynamic Loading Aeronautical Applications. NANOMATERIALS 2020; 10:nano10020188. [PMID: 31978955 PMCID: PMC7074943 DOI: 10.3390/nano10020188] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/16/2020] [Accepted: 01/17/2020] [Indexed: 11/16/2022]
Abstract
The effects of the addition of an aromatic hyperbranched polyester (AHBP) on thermal, mechanical, and fracture toughness properties of a thermosetting resin system were investigated. AHBP filler, synthesized by using a bulk poly-condensation reaction, reveals a glassy state at room temperature. Indeed, according to differential scanning calorimetry measurements, the glass transition temperature (Tg) of AHBP is 95 °C. Three different adduct weight percentages were employed to manufacture the AHBP/epoxy samples, respectively, 0.1, 1, and 5 wt%. Dynamical Mechanical Analysis tests revealed that the addition of AHBP induces a negligible variation in terms of conservative modulus, whereas a slight Tg reduction of about 4 °C was observed at 5 wt% of filler content. Fracture toughness results showed an improvement of both critical stress intensity factor (+18%) and critical strain energy release rate (+83%) by adding 5 wt% of AHBP compared to the neat epoxy matrix. Static and dynamic compression tests covering strain rates ranging from 0.0008 to 1000 s-1 revealed a pronounced strain rate sensitivity for all AHBP/epoxy systems. The AHBP composites all showed an increase of the true peak yield compressive strength with the best improvement associated with the sample with 0.1 wt% of AHBP.
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9
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Zhang M, Chen M, Ni Z. Epoxy polymer toughening using dendritic spherulites microstructure formed by the self-assembly of alkyl branched tri-carbamates with a spacer of isocyanurate ring. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Tang H, Zhou H. A novel nitrogen, phosphorus, and boron ionic pair compound toward fire safety and mechanical enhancement effect for epoxy resin. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4823] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hao Tang
- College of Chemistry and Environmental TechnologyWuhan Institute of Technology Wuhan China
| | - Hong Zhou
- College of Chemistry and Environmental TechnologyWuhan Institute of Technology Wuhan China
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11
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Liu H, Lin N, Huang J, Chang G, Wu Y, Li X. Effect of methyl methacrylate on the properties of transparent flame retardant unsaturated phosphate ester copolymer. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hongli Liu
- State Key Laboratory of Environment Friendly Energy MaterialsSchool of Material Science and Engineering, National Engineering Technology Center for Insulation Materials, Southwest University of Science and Technology Mianyang 621010 People's Republic of China
| | - Nan Lin
- State Key Laboratory of Environment Friendly Energy MaterialsSchool of Material Science and Engineering, National Engineering Technology Center for Insulation Materials, Southwest University of Science and Technology Mianyang 621010 People's Republic of China
| | - Jie Huang
- National Insulation Engineering Technology Research CenterSichuan EM Technology Co., Ltd. Mianyang 621010 People's Republic of China
| | - Guanjun Chang
- State Key Laboratory of Environment Friendly Energy MaterialsSchool of Material Science and Engineering, National Engineering Technology Center for Insulation Materials, Southwest University of Science and Technology Mianyang 621010 People's Republic of China
| | - Yilong Wu
- Chongqing Gas Well Area, Southwest Oil and Gas Field Company Chongqing 400707 People's Republic of China
| | - Xiuyun Li
- State Key Laboratory of Environment Friendly Energy MaterialsSchool of Material Science and Engineering, National Engineering Technology Center for Insulation Materials, Southwest University of Science and Technology Mianyang 621010 People's Republic of China
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12
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Thermal Properties and Fracture Toughness of Epoxy Nanocomposites Loaded with Hyperbranched-Polymers-Based Core/Shell Nanoparticles. NANOMATERIALS 2019; 9:nano9030418. [PMID: 30871018 PMCID: PMC6473966 DOI: 10.3390/nano9030418] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 02/28/2019] [Accepted: 03/05/2019] [Indexed: 11/17/2022]
Abstract
Synthesized silicon oxide (silica) nanoparticles were functionalized with a hyperbranched polymer (HBP) achieving a core/shell nanoparticles (CSNPs) morphology. CSNPs were characterized by Fourier Transform Infrared (FTIR) spectroscopy, Transmission Electron Microscopy (TEM), and Thermogravimetric Analysis (TGA). A core diameter of about 250 nm with a 15 nm thick shell was revealed using TEM images. An aeronautical epoxy resin was loaded with the synthesized CSNPs at different percentages and thermal properties, such as thermal stability and dynamic mechanical properties, were investigated with the use of different techniques. Although the incorporation of 2.5 wt% of CSNPs induces a ~4 °C reduction of the hosting matrix glass transition temperature, a slight increase of the storage modulus of about ~10% was also measured. The Kissinger Method was employed in order to study the thermal stability of the nanocomposites; the degradation activation energies that resulted were higher for the sample loaded with low filler content with a maximum increase of both degradation step energies of about ~77% and ~20%, respectively. Finally, fracture toughness analysis revealed that both the critical stress intensity factor (KIC) and critical strain energy release rate (GIC) increased with the CSNPs content, reporting an increase of about 32% and 74%, respectively, for the higher filler loading.
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13
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Tough and biodegradable thermosets derived by blending of renewable resource based hyperbranched epoxy and hyperbranched polyester. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2018.11.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Zhang C, Lei Z, Zhang J, Wang Y, Liu Y. Cure behavior and compatibilization of epoxide hyperbranched polyurethane on silica/benzoxazine blend. J Appl Polym Sci 2018. [DOI: 10.1002/app.46879] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- C. Zhang
- Department of Chemical Engineering; School of Chemical Engineering and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - Z. Lei
- Department of Chemical Engineering; School of Chemical Engineering and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - J. Zhang
- Department of Applied Chemistry; School of Science, Xi'an Jiaotong University; Xi'an 710049 China
| | - Y. Wang
- Department of Chemical Engineering; School of Chemical Engineering and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - Y. Liu
- Department of Chemical Engineering; School of Chemical Engineering and Technology, Xi'an Jiaotong University; Xi'an 710049 China
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15
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Simultaneous toughening and reinforcing of cyanate ester/benzoxazine resins with improved mechanical and thermal properties by using hyperbranched polyesters. JOURNAL OF POLYMER ENGINEERING 2018. [DOI: 10.1515/polyeng-2017-0376] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the present study, the influence of incorporating various amounts of hyperbranched polyester (HBPE) into thermosetting resin blends composed of cyanate ester (CE) and benzoxazine (BOZ) resins was investigated for their structural, morphological, mechanical, and thermal properties. The FTIR spectra revealed that the CE/BOZ resin had reacted with the functional groups of HBPE, and the SEM test confirmed the morphological changes from a smooth surface that was observed for the virgin CE/BOZ resin to a rough surface for the maximum HBPE content. Moreover, the mechanical and thermal properties were found to be pointedly enhanced as we increased the content of HBPE. These remarkable enhancements may be due to the chemical structure of the HBPE which could form a cross-linked structure through a strong hydrogen bonding with the CE/BOZ resin. As a result, a considerable amount of applied mechanical load can be absorbed, and in parallel, the thermal stability can also be improved. We believe that the HBPE can be a good toughener for the CE/BOZ resins that could possibly expand their range of applications in various industrial sectors.
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16
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Origin of Modulus Improvement for Epoxide-terminated Hyperbranched Poly(ether sulphone)/DGEBA/TETA Systems. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2114-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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17
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Miao X, Han B, Xing A, Liu T, He L, Li X, Meng Y. Tetrafunctional epoxy as an all-purpose modifier for homopolymerized bisphenol A diglycidyl ether. J Appl Polym Sci 2018. [DOI: 10.1002/app.46431] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xuepei Miao
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Bing Han
- Department of Orthodontics; Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology; Beijing 100081 People's Republic of China
| | - An Xing
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Tuan Liu
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Lifan He
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Xiaoyu Li
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Yan Meng
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
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18
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Liu H, Gao X, Deng B, Huang G. Simultaneously reinforcing and toughening epoxy network with a novel hyperbranched polysiloxane modifier. J Appl Polym Sci 2018. [DOI: 10.1002/app.46340] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hanchao Liu
- State Key Laboratory of Polymer Material Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Xiaoxiao Gao
- State Key Laboratory of Polymer Material Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Bo Deng
- State Key Laboratory of Polymer Material Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 China
| | - Guangsu Huang
- State Key Laboratory of Polymer Material Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu 610065 China
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19
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One-pot synthesis of tetramethyl biphenyl backboned hyperbranched epoxy resin as an efficient toughening modifier for two epoxy curing systems. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2269-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Simultaneous toughening and strengthening of diglycidyl ether of bisphenol-a using epoxy-ended hyperbranched polymers obtained from thiol-ene click reaction. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24767] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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21
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Wang X, Zong L, Han J, Wang J, Liu C, Jian X. Toughening and reinforcing of benzoxazine resins using a new hyperbranched polyether epoxy as a non-phase-separation modifier. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.05.069] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Simultaneous enhancements in toughness, tensile strength, and thermal properties of epoxy-anhydride thermosets with a carboxyl-terminated hyperbranched polyester. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.03.022] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Misasi JM, Jin Q, Knauer KM, Morgan SE, Wiggins JS. Hybrid POSS-Hyperbranched polymer additives for simultaneous reinforcement and toughness improvements in epoxy networks. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Yu Q, Liang Y, Cheng J, Chen S, Zhang A, Miao M, Zhang D. Synthesis of a Degradable High-Performance Epoxy-Ended Hyperbranched Polyester. ACS OMEGA 2017; 2:1350-1359. [PMID: 31457508 PMCID: PMC6640995 DOI: 10.1021/acsomega.7b00132] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 03/27/2017] [Indexed: 05/04/2023]
Abstract
Degradation and recycling of cured thermosetting epoxy resins are major challenges to the industry. Here, a low-viscosity, degradable epoxy-ended hyperbranched polyester (DEHP) is synthesized by a reaction between epichlorohydrin and a carboxyl-ended hyperbranched polyester (DCHP) obtained from an esterification between citric acid and maleic anhydride. The chemical structures of DCHP and DEHP were characterized by Fourier transform infrared and 1H NMR. DEHP has a positive effect on reinforcing and toughening of the diglycidyl ether of bisphenol-A (DGEBA). With an increase in the content and molecular weight of DEHP, the mechanical performances of the cured DEHP/DGEBA composites, including the tensile, flexural, and impact strengths, increase first and then decrease. The improvements on the tensile, flexural, and impact strengths were 34.2-43.4%, 35.6-48.1%, and 117.9-137.8%, respectively. Moreover, the DEHP also promotes degradation of the cured DEHP/DGEBA composites. The degree of degradation of the cured DEHP/DGEBA composites increases with an increase of the DEHP content and molecular weight. The composites containing 12 wt % DEHP can be degraded completely in only about 2 h at about 90 °C, compared with the degradation degree (35%) of cured DGEBA, indicating good degradation and recycling properties of the DEHP.
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Affiliation(s)
- Qian Yu
- Key
Laboratory of Catalysis and Materials Science of the State Ethnic
Affairs Commission & Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei 430074, China
| | - Yeyun Liang
- Key
Laboratory of Catalysis and Materials Science of the State Ethnic
Affairs Commission & Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei 430074, China
| | - Juan Cheng
- Key
Laboratory of Catalysis and Materials Science of the State Ethnic
Affairs Commission & Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei 430074, China
| | - Sufang Chen
- Key
Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, Hubei 430073, China
| | - Aiqing Zhang
- Key
Laboratory of Catalysis and Materials Science of the State Ethnic
Affairs Commission & Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei 430074, China
| | - Menghe Miao
- CSIRO
Manufacturing, P.O. Box 21, Belmont, Victoria 3216, Australia
| | - Daohong Zhang
- Key
Laboratory of Catalysis and Materials Science of the State Ethnic
Affairs Commission & Ministry of Education, South-Central University for Nationalities, Wuhan, Hubei 430074, China
- E-mail:
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25
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Li S, Wu Q, Lv T, Zhu H, Hou H, Lin Q, Li Y, Cui C, Guo Y. Synthesis and characterization of hyperbranched polymer with epoxide-terminated group and application as modifier for epoxy/polyamide system. POLYMER SCIENCE SERIES B 2017. [DOI: 10.1134/s1560090417030101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Wang Z, Yuan L, Ganewatta MS, Lamm ME, Rahman MA, Wang J, Liu S, Tang C. Plant Oil‐Derived Epoxy Polymers toward Sustainable Biobased Thermosets. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700009] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/10/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Zhongkai Wang
- School of Forestry and Landscape Architecture Anhui Agriculture University Hefei Anhui 230036 China
- Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA
| | - Liang Yuan
- Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA
| | - Mitra S. Ganewatta
- Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA
| | - Meghan E. Lamm
- Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA
| | - Md Anisur Rahman
- Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA
| | - Jifu Wang
- Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA
| | - Shengquan Liu
- School of Forestry and Landscape Architecture Anhui Agriculture University Hefei Anhui 230036 China
| | - Chuanbing Tang
- Department of Chemistry and Biochemistry University of South Carolina Columbia SC 29208 USA
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27
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Hyperbranched unsaturated polyester resin for application in impregnation coatings. IRANIAN POLYMER JOURNAL 2016. [DOI: 10.1007/s13726-016-0493-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Ye W, Wei W, Fei X, Lu R, Liu N, Luo J, Zhu Y, Liu X. Six-arm star-shaped polymer with cyclophosphazene core and poly(ε-caprolactone) arms as modifier of epoxy thermosets. J Appl Polym Sci 2016. [DOI: 10.1002/app.44384] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Weitao Ye
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi Jiangsu 214122 People's Republic of China
| | - Wei Wei
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi Jiangsu 214122 People's Republic of China
| | - Xiaoma Fei
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi Jiangsu 214122 People's Republic of China
| | - Rongjie Lu
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi Jiangsu 214122 People's Republic of China
| | - Na Liu
- Wuxi Chuangda Advanced Materials Co., Ltd.; Wuxi Jiangsu 214028 People's Republic of China
| | - Jing Luo
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi Jiangsu 214122 People's Republic of China
| | - Ye Zhu
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi Jiangsu 214122 People's Republic of China
| | - Xiaoya Liu
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education School of Chemical and Material Engineering; Jiangnan University; Wuxi Jiangsu 214122 People's Republic of China
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29
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Tian N, Ning R, Kong J. Self-toughening of epoxy resin through controlling topology of cross-linked networks. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.07.038] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Tannic acid-based tough hyperbranched epoxy thermoset as an advanced environmentally sustainable high-performing material. IRANIAN POLYMER JOURNAL 2016. [DOI: 10.1007/s13726-016-0471-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Biocide immobilized OMMT-carbon dot reduced Cu2O nanohybrid/hyperbranched epoxy nanocomposites: Mechanical, thermal, antimicrobial and optical properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 56:74-83. [DOI: 10.1016/j.msec.2015.06.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 02/24/2015] [Accepted: 06/10/2015] [Indexed: 01/15/2023]
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32
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Liu D, Wang H, Jiang H, Zhou D. Improving the heat-resistance and toughness performance of phenolic resins by adding a rigid aromatic hyperbranched polyester. J Appl Polym Sci 2015. [DOI: 10.1002/app.42734] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dan Liu
- School of Biological, Chemical Sciences, and Engineering; Jiaxing University; Jiaxing 314001 China
| | - Hongmei Wang
- School of Biological, Chemical Sciences, and Engineering; Jiaxing University; Jiaxing 314001 China
| | - Huasheng Jiang
- School of Biological, Chemical Sciences, and Engineering; Jiaxing University; Jiaxing 314001 China
| | - Dapeng Zhou
- School of Biological, Chemical Sciences, and Engineering; Jiaxing University; Jiaxing 314001 China
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33
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Jiang H, Wang R, Farhan S, Zheng S. Improved thermosets obtained from diglycidyl ether of bisphenol A/4,4′-diaminodiphenylsulfone based on a new epoxy-terminated hyperbranched polymer. POLYM INT 2015. [DOI: 10.1002/pi.4982] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hao Jiang
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 PR China
| | - Rumin Wang
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 PR China
| | - Shameel Farhan
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 PR China
| | - Shuirong Zheng
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 PR China
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34
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Jin Q, Misasi JM, Wiggins JS, Morgan SE. Simultaneous reinforcement and toughness improvement in an aromatic epoxy network with an aliphatic hyperbranched epoxy modifier. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.07.031] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Zhang D, Hu P, Xu Z, Chen S, Zhang J, Zhang A, Miao M. A novel method for preparation of epoxy resins using thiol-ene click reaction. J Appl Polym Sci 2015. [DOI: 10.1002/app.42316] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daohong Zhang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education; South-central University for Nationalities; Wuhan Hubei Province 430074 China
| | - Peng Hu
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education; South-central University for Nationalities; Wuhan Hubei Province 430074 China
| | - Zhicai Xu
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education; South-central University for Nationalities; Wuhan Hubei Province 430074 China
| | - Sufang Chen
- Key Laboratory for Green Chemical Process of Ministry of Education; Wuhan Institute of Technology; Wuhan Hubei 430073 China
| | - Junheng Zhang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education; South-central University for Nationalities; Wuhan Hubei Province 430074 China
| | - Aiqing Zhang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education; South-central University for Nationalities; Wuhan Hubei Province 430074 China
| | - Menghe Miao
- Commonwealth Scientific and Industrial Research Organization Manufacturing Flagship; P.O. Box 21 Belmont Victoria 3216 Australia
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36
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Miao X, Meng Y, Li X. A novel all-purpose epoxy-terminated hyperbranched polyether sulphone toughener for an epoxy/amine system. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.01.034] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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37
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Li X, Kang HL, Shen JX, Zhang LQ, Nishi T, Ito K. Miscibility, intramolecular specific interactions and mechanical properties of a DGEBA based epoxy resin toughened with a sliding graft copolymer. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1596-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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Miao X, Meng Y, Li X. Epoxide-terminated hyperbranched polyether sulphone as triple enhancement modifier for DGEBA. J Appl Polym Sci 2015. [DOI: 10.1002/app.41910] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xuepei Miao
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Yan Meng
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Xiaoyu Li
- State Key Laboratory of Organic-Inorganic Composites; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
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39
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Zhang K, Yu Y, Nguyen ST, Hupp JT, Broadbelt LJ, Farha OK. Epoxidation of the Commercially Relevant Divinylbenzene with [tetrakis-(Pentafluorophenyl)porphyrinato]iron(III) Chloride and Its Derivatives. Ind Eng Chem Res 2015. [DOI: 10.1021/ie504550p] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kainan Zhang
- Department
of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Ying Yu
- Department
of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3120, United States
| | - SonBinh T. Nguyen
- Department
of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Joseph T. Hupp
- Department
of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Linda J. Broadbelt
- Department
of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3120, United States
| | - Omar K. Farha
- Department
of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Department
of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 22254, Saudi Arabia
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40
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De B, Gupta K, Mandal M, Karak N. Tough hyperbranched epoxy/neem-oil-modified OMMT thermosetting nanocomposite with an antimicrobial attribute. NEW J CHEM 2015. [DOI: 10.1039/c4nj01558d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, a high performance, tough, antimicrobial, hyperbranched epoxy nanocomposite is fabricated by the incorporation of neem oil-immobilized organo-modified montmorillonite nanoclay.
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Affiliation(s)
- Bibekananda De
- Advanced Polymer and Nanomaterial Laboratory
- Department of Chemical Sciences
- Tezpur University
- Napaam-784028
- India
| | - Kuldeep Gupta
- Department of Molecular Biology and Biotechnology
- Tezpur University
- Napaam-784028
- India
| | - Manabendra Mandal
- Department of Molecular Biology and Biotechnology
- Tezpur University
- Napaam-784028
- India
| | - Niranjan Karak
- Advanced Polymer and Nanomaterial Laboratory
- Department of Chemical Sciences
- Tezpur University
- Napaam-784028
- India
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41
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Abstract
A starch based sustainable high performing tough hyperbranched epoxy thermoset with exceptionally high tensile adhesive strength, and biodegradability was demonstrated.
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Affiliation(s)
- Rituparna Duarah
- Advanced Polymer and Nanomaterial Laboratory
- Center for Polymer Science and Technology
- Department of Chemical Sciences
- Tezpur University
- Napaam 784028
| | - Niranjan Karak
- Advanced Polymer and Nanomaterial Laboratory
- Center for Polymer Science and Technology
- Department of Chemical Sciences
- Tezpur University
- Napaam 784028
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42
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Barua S, Chattopadhyay P, Karak N. s-Triazine-based biocompatible hyperbranched epoxy adhesive with antibacterial attributes for sutureless surgical sealing. J Mater Chem B 2015; 3:5877-5885. [DOI: 10.1039/c5tb00753d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hyperbranched epoxy based antimicrobial, biodegradable and non-toxic surgical sealant.
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Affiliation(s)
- Shaswat Barua
- Advanced Polymer and Nanomaterial Laboratory
- Centre for Polymer Science and Technology
- Department of Chemical Sciences
- Tezpur University
- Napaam-784028
| | | | - Niranjan Karak
- Advanced Polymer and Nanomaterial Laboratory
- Centre for Polymer Science and Technology
- Department of Chemical Sciences
- Tezpur University
- Napaam-784028
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43
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Zheng Y, Li S, Weng Z, Gao C. Hyperbranched polymers: advances from synthesis to applications. Chem Soc Rev 2015; 44:4091-130. [DOI: 10.1039/c4cs00528g] [Citation(s) in RCA: 498] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarizes the advances in hyperbranched polymers from the viewpoint of structure, click synthesis and functionalization towards their applications in the last decade.
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Affiliation(s)
- Yaochen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Sipei Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Zhulin Weng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Chao Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
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44
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De B, Voit B, Karak N. Carbon dot reduced Cu2O nanohybrid/hyperbranched epoxy nanocomposite: mechanical, thermal and photocatalytic activity. RSC Adv 2014. [DOI: 10.1039/c4ra11120f] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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45
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DE BIBEKANANDA, KARAK NIRANJAN. A room temperature cured low dielectric hyperbranched epoxy adhesive with high mechanical strength. J CHEM SCI 2014. [DOI: 10.1007/s12039-014-0595-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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De B, Karak N. Tough hyperbranched epoxy/poly(amido-amine) modified bentonite thermosetting nanocomposites. J Appl Polym Sci 2014. [DOI: 10.1002/app.40327] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bibekananda De
- Advanced Polymer and Nanomaterial Laboratory; Department of Chemical Sciences; Tezpur University; Napaam Assam India
| | - Niranjan Karak
- Advanced Polymer and Nanomaterial Laboratory; Department of Chemical Sciences; Tezpur University; Napaam Assam India
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47
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Manjula Dhevi D, Jaisankar S, Pathak M. Effect of new hyperbranched polyester of varying generations on toughening of epoxy resin through interpenetrating polymer networks using urethane linkages. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.06.041] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Processing characteristic and radiation resistance of various epoxy insulation materials for superconducting magnets. FUSION ENGINEERING AND DESIGN 2013. [DOI: 10.1016/j.fusengdes.2013.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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De B, Voit B, Karak N. Transparent luminescent hyperbranched epoxy/carbon oxide dot nanocomposites with outstanding toughness and ductility. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10027-34. [PMID: 24059454 DOI: 10.1021/am402415g] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A luminescent transparent hyperbranched epoxy nanocomposite with previously unachieved outstanding toughness and elasticity has been created by incorporation of a very small amount of carbon oxide nanodots. The nanocomposites of the hyperbranched epoxy with carbon oxide dots at different dose levels (0.1, 0.5, and 1.0 wt %) have been prepared by an ex situ solution technique followed by curing with poly(amido-amine) at 100 °C. Different characterizations and evaluations of mechanical and optical properties of the nanocomposites have been performed. The toughness (area under the stress-strain curve) of the pristine system has been improved dramatically by 750% with only 0.5 wt % carbon oxide dots. The tensile strength has been enhanced from 38 to 46 MPa, whereas the elongation at break improved noticeably from 15 to 45%. Excellent adhesive strength combined with transparency and photoluminescent behavior renders these materials highly interesting as functional films in optical devices like light-emitting diodes and UV light detection systems as well as in anticounterfeiting applications.
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Affiliation(s)
- Bibekananda De
- Advanced Polymer and Nanomaterial Laboratory, Department of Chemical Sciences, Tezpur University , Napaam 784028, Assam, India
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50
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Flores M, Fernández-Francos X, Ramis X, Sangermano M, Ferrando F, Serra À. Photocuring of cycloaliphatic epoxy formulations using polyesters with multiarm star topology as additives. J Appl Polym Sci 2013. [DOI: 10.1002/app.40005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marjorie Flores
- Department of Analytical and Organic Chemistry; Universitat Rovira i Virgili; C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
| | - Xavier Fernández-Francos
- Department of Analytical and Organic Chemistry; Universitat Rovira i Virgili; C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
| | - Xavier Ramis
- Thermodynamics Laboratory; ETSEIB Universitat Politècnica de Catalunya; Av. Diagonal 647 08028 Barcelona Spain
| | - Marco Sangermano
- Department of Material Science and Chemical Engineering; Politecnico di Torino; C.so Duca degli Abruzzi 24 10129 Torino Italy
| | - Francesc Ferrando
- Department of Mechanical Engineering; Universitat Rovira i Virgili; C/ Països Catalans, 26 43007 Tarragona Spain
| | - Àngels Serra
- Department of Analytical and Organic Chemistry; Universitat Rovira i Virgili; C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
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